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Diffstat (limited to 'doc/SPI')
| -rw-r--r-- | doc/SPI/README.sh_qspi_test | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/doc/SPI/README.sh_qspi_test b/doc/SPI/README.sh_qspi_test new file mode 100644 index 0000000..8a33fec --- /dev/null +++ b/doc/SPI/README.sh_qspi_test @@ -0,0 +1,38 @@ +------------------------------------------------- + Simple steps used to test the SH-QSPI at U-Boot +------------------------------------------------- + +#0, Currently, SH-QSPI is used by lager board (Renesas ARM SoC R8A7790) + and koelsch board (Renesas ARM SoC R8A7791). These boot from SPI ROM + basically. Thus, U-Boot start, SH-QSPI will is operating normally. + +#1, build U-Boot and load u-boot.bin + + => tftpboot 40000000 u-boot.bin + sh_eth Waiting for PHY auto negotiation to complete.. done + sh_eth: 100Base/Half + Using sh_eth device + TFTP from server 192.168.169.1; our IP address is 192.168.169.79 + Filename 'u-boot.bin'. + Load address: 0x40000000 + Loading: ############ + 2.5 MiB/s + done + Bytes transferred = 175364 (2ad04 hex) + +#2, Commands to erase/write u-boot to flash device + + Note: This method is description of the lager board. If you want to use the + other boards, please change the value according to each environment. + + => sf probe 0 + SF: Detected S25FL512S_256K with page size 512 Bytes, erase size 64 KiB, total 64 MiB + => sf erase 80000 40000 + SF: 262144 bytes @ 0x80000 Erased: OK + => sf write 40000000 80000 175364 + SF: 1528676 bytes @ 0x80000 Written: OK + => + +#3, Push reset button. + + If you're written correctly and driver works properly, U-Boot starts. |